<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide
        v-for="(page, index) of pages"
        :key="index"
      >
        <div
          class="icon"
          v-for="item of page"
          :key="item.id"
        >
          <div class='icon-img'>
            <img
              class='icon-img-content'
              :src='item.imgUrl'
            />
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  data() {
    return {
      swiperOption: {
        autoplay: false
      },
      list: [
        {
          id: '0001',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        }, {
          id: '0002',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        },
        {
          id: '0003',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        }, {
          id: '0004',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        },
        {
          id: '0005',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        }, {
          id: '0006',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        },
        {
          id: '0007',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        }, {
          id: '0008',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        }, {
          id: '0009',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1803/95/f3dd6c383aeb3b02.png',
          desc: 'xxx'
        }
      ]
    }
  },
  computed: {
    //计算属性  按照个数把一维数组分成8个一组的二维数组
    pages() {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
@import '~styles/mixins.styl'
.icons >>> .swiper-container
  height: 0
  padding-bottom: 50%
.icons
  margin-top: 0.1rem
  .icon
    position: relative
    overflow: hidden
    float: left
    width: 25%
    height: 0
    padding-bottom: 25%
    .icon-img
      position: absolute
      top: 0
      left: 0
      right: 0
      bottom: 0.44rem
      box-sizing: border-box
      padding: 0.1rem
      .icon-img-content
        display: block
        margin: 0 auto
        height: 100%
    .icon-desc
      position: absolute
      left: 0
      right: 0
      bottom: 0
      height: 0.44rem
      line-height: 0.44rem
      text-align: center
      color: $darkTextColor
      ellipsis()
</style>
